Coke-oven valve construction



Jan. 17, 1928.

3 Sheets-Sheet 1 I Filed April- 21. 1921 Jan. 17, 1928.

G. HUFFMANN COKE OVEN VALVE CONSTRUCTION Filed April 21, 1921 3Sheets-Sheet 2 Jan. 17, 1928. 1,656,355

G. HUFFMANN 'COKE OVEN VALVE CONSTRUCTION Fil d April 21. 1921 sSheets-Sheet 5 Patented Jan. 17, 1928.

PATENT OFFICE.

GEORGE HUFFMANN, OEPITTSBURGH, PENNSYLVANIA, 'ASSIGNOR TO THE KOPPI EBSCOMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION 01 PENNSYL- VAN IA.

COKE-OVEN VALVE CONSTRUCTION.

Application filed April 21, 1921. Serial No. 463,419.

This invention relates to an improved valve construction that is ofespecial utility in conjunction with by-product coke ovens. Theinvention has for an object to provide a valve thatcombinessimplicityand economy in construction with a capacity for being readily adjustedto vary the quantity of the medium' which flows through the valve andtopermit accurate regulation of the quantity of the medium flowing fromthe valve, in order, for example, to insure the supply of a properquantity of a gaseous medium, such as fuel as, air or waste-gas, to theregenerative or uel areas of a by-product coke oven. a

In addition to the general objects recited above, the invention has forother objects such other improvements or advantagesin construction andoper'atiomas are found to obtain in the structures and deviceshereinafter described or claimed.

In the accompanying drawings, forming a part of this specification andshowing, for purposes of exemplification, a preferred form and manner inwhich the invention may be embodiedand practiced, but without limitingthe claimed invention to such illustrative instance or instances.

Figure 1 is a fragmentary sectionalelevation of a coking plant orbattery, showing a portion of the mechanism for controlling the flow ofthe gaseous'medium's throughthe flue and regenerative areas of thebattery,

said mechanism being equipped with anim- 1 proved valve constructed inaccordance with the present invention;

Fig. 2 is a detail plan view of the valve;

Fig. 3 is a side elevation of the same;

Fig. 4 is a horizontal section taken in a plane indicated by the line4-4.- of Fig. 3; and

Fig. 5 is a vertical section taken in a plane indicated by the line 5-5of Fig. 2.

Thesame characters of reference designate the same parts in each of theseveral views of the drawings.

In its present embodiment, the invention a ly designed for use inconnection with the flow control mechanism of a coking is especi plant.

For convenience, the present description will be confined to this use ofthe invention; features of construction and operation are,

however, capable of other valuable applications; consequently, the scopeof the invention is by no means confined to the specific use andspecific embodiment herein described as an illustrative example.Referring to Fig. 1 of the drawing, there is illustrated a fragment of acoke oven battery or plant of the by-product type, which plant embodiesin its construction regenerators designated generally at 11 and havingsole channels 12 that communicate at their- -pipe assemblies 16 with theflow boxes 13 of such regenerators as operate to introduce air into thefines of the heating walls.

The present invention is chiefly concerned with the valve 17, that isembodied in each pipeassembly 16 and is especially nonstruct- .ed toinsure the delivery of regulable quantities of gas into the solechannels of the regenerators communicably connected with such pipeassemblies. This valve 17 embodies in its construction a hollow casing18 provided with "a central valve chamber 19,

preferably of inverted frustro-conical sha e as shown in Figs. 3 and 5and provided at its opposite ends with flanges 20 which are respectivelysecured to flange members 21 of the pipe assembly 16 in which the valve17 is incor orated. As shown in Fig. 4 cleanout or lnspection orts 22are rovided in extensions 23 of t e opposite sides of the valve casing18, the outer ends of such orts being normally closed by doors 24. 656doors 24 are respectively hinged at 25 to the valve casing and are eachprovided with suit- 7 able latches 26 for maintaining them normally inclosed position over the mouths of the orts 22.

T e op osite ends of the valve chamber 19 respective y communicate withan inlet port 27 and an outlet port 28, and when the valve is open,as sown in Figs. 4 and '6, gaseous medium such as air flows. from the supplymain 14 through the valve and extended parts of the pipe assembly 16 tothe flow box 13 of the communicabl y connected regenerator 11. The flowof gaseous medium from the inlet port 27 of the valve casing to theoutlet port 28 thereof is controlled by means of the valve body 29. Thevalve body 2t) is constituted of a hollow outer member 30 the workingsurface 31 of which is of inverted t'rustro-conical shape to correspondwith and make a tight fit with the inverted i rustro-conical wall of thevalve chamber 19 and of an inner hollow member 32 mounted within theaforesaid outer member 30 and with its outer wall face 33 in closefrictional contact with the inner wall face 3% ot the said outer member30. The outer member 30 is provided with an inlet port 35 and an outletport 36, which respectively register with the inlet 27 and outlet 28 ot'the valve chamber 18, when the valve is in open position; similarly theinner valve member is provided with an inlet port 37 and an outlet port38 which are adapted. on turning the inner member relatively to theouter member 30 in the manner hereinafter described, to register more orless with the inlet and outlet ports 35 and 36 ot' the outer member 30,thereby to regulate the quantity of medium permitted to flow through thevalve.

The upper end of the outer member 30 is provided with avertically-extended flange 39 the inner face of which is screw threaded,as showii at 40, to receive a screw threaded cap 41 having a downwardlyprojected flange 42 which bears on a ring washer 43 seated in an annulargroove -14 formed in the top of the inner member 32. The cap ll isscrewed tightly into the flange 39 ot the outer member 30 and bears onthe washer 43 to insure movement of the inner member 32 along with theouter member 30 of the valve body, during the normal operation ofopening and closing the valve. Movement of the inner member 32relatively to the outer member 30 is utilized only for the purpose ofregulating the etfectiveisizc ot the ports 35 and 36. when it isnecessary to regulate the quantity of medium to flow through the valve.For permitting such adjustment of the inner member 32, the latter isprovided with an upwardly projecting stem 45, which extends through ahole 46 in the cap 41 and is provided at its upper end with an indicatorhandle 47 adapted to coope ate with a scale 48 mounted on top of theflange 39 of the outer member 30. By turning the handle 47 the innermember 32 may be turned relatively to the outer member 30 to move theports 37, 38 out of or iiito registry with the orts 35 and 36 of theouter member 30 an thus restrict or enlarge the size of said ports 35and 36, with the result that the quantity of medium flowing through thevalve may be regulated by turning the pointer handle 47 to the desiredgraduation of the scale 48.

In its present embodiment, the valve is opened or closed by means of theusual re versing cable -1-0. with a valve-operating arm 50 that issecured to a shank Til which depends from the bottom closed end of theouter member 30 of the valve body 29. On movement of the cable 49 in onedirection the outer and inner members 3t) and 32 are turned in unison toopen the valve to an extent determined by the adjustment ot the innervalve member relatively to the outer one; whereas, on movement of thecable 49 in the opposite direction both said members 30 and 32 areturned in unison to close the valve.

The invention as hereinabove set forth is embodied in a particular formof construction but may be variously embodied within the scope of theclaims hereinafter made.

I claim:

1. A valve construction for the purpose hcrciu set forth. comprising: acasing C01l stituted ot a valve chamber and having an 4 inletaud anoutlet; a valve body seated within said chamber, said valve bodycomprising an outer member having ports respectively co-operable withsaid inlet and outlet, and an inner member mounted within said outermember and also provided with ports which control the passageway betweenports of the outer member and which, on adjustment of the inner memberrelatively to the outer member, may be placed into or out of registrywith respect to the ports of the outer member to adjust the capacity ofthe valve as a whole; a cap secured to said outer member and bearingwith pressure on the inner member for in surin; movement 0']? the innermember in unison with the outer member, during the normal operation ofthe valve and regardless of the application of abrupt forces thereto; astem extending from the top of said inner member and projecting throughsaid cap, said stem having provision for turning the inner memberrelatively to the outer member; and means secured to said outer memberfor normally operating the valve: substantially as specified.

2. A valve construction for the purpose heroin set forth. comprising: acasing cou stituted of a valve chamber and having an inlet and anoutlet; a valve body seated within said chamber, said valve bodycomprising, an outer member having ports rcspectivcly co-operablc withsaid inlet and outlet, and an inner member mounted within said outermember and also provided with ports which control the passageway betweenthe ports of the outer member and which, on movement of the inner memberrelatively to the outer member. may be moved into and out of registrywith resnect This cable co-opcrates to the ports of the outer member toadjust the capacity of the valve as a whole; means carried by the outermember for insuring a fixed position of the inner member with respect tothe outer member, during the normal operation of the valve andre ardlessof the application of abrupt orces thereto; means operable at will forturning the inner member respectively to the outer member; and meanssecured to said outer member for normally operating the valve;substantially as specified.

3. A valve construction for the, purpose herein set forth, comprising: acasin constitutcd of a valve chamber and having an inlet and an outlet;a valve body seated within said chamber, said valve body comprising anouter member having ports respectively co-operable with said inlet andoutlet, and an inner member mounted within said outer member and alsoprovided with ports which control the passageway between the ports-ofthe outer member and which, on movement of the inner member relativelyto the outer member, may be moved into or out of registry with respectto the ports of the outer member to adjust the capacity of the valve asa whole; means carried by one of said members for frictional engagementwith the other of said members for insuring movement of the inner memberin unison with the outer member, during the normal operation of thevalve and regardless of the application of abrupt forces thereto; meansoperable at will for turnig the inner member relatively to the outermember; and means secured to;one of said members for normally operatingthe valve; substantially as specified. I

4. A valve construction for the purpose herein set forth,-comprising: acasing con stituted of a valve chamber; a valve body seated within saidchamber, said valve bodv comprising inner and outer. hollow mem bers,both provided with ports co-operating to control the passageway throughthe valve as a whole; means for insuring a fixed po sition of the innermember with respect to the outer member during the normal operation ofthe valve and regardless of-the application of abrupt forces thereto;means 7 valve; substantially as specified.

5. A valve construction for the purpose herein set forth, comprising: acasing con-- stituted of a valve chamber; a valve body seated withinsaid chamber; said valve body provided with ports, regulating meansWithin said valve body for varying the size of said ports; means forlocking said regulating means in adjusted position regardless of theapplication of abrupt forces thereto: and means secured to said valvebody for normallv operating the valve; substantially as specified.

6. A valve construction for the purpose herein set forth, comprising: acasing constituted of a valve chamber; a valve body seated within saidchamber and rovided with ports; regulating means controllable cxteriorlyof the casing for varying the size of the ports of said valve body;means for frictionally locking said regulating means in adjustedposition regardless of the applicat-ion hf abrupt forces thereto; andmeans secured to said valve body for normally operating the valve;substantially as specified. Y GEORGE HUFFMANN.

